CN101388273A

CN101388273A - Control device for pulse ordering type permanent electric magnetic disk

Info

Publication number: CN101388273A
Application number: CNA2007101422960A
Authority: CN
Inventors: 廖禄荣
Original assignee: Holding Electric Co Ltd
Current assignee: Holding Electric Co Ltd
Priority date: 2007-09-14
Filing date: 2007-09-14
Publication date: 2009-03-18

Abstract

The invention relates to a control device of an impulse array type permanent electromagnetic disc, which is used for forming magnetizing or demagnetizer current with single cycle wave on a plurality of magnetic absorption regions which are respectively alternating in different time sequences on an electromagnetic disc, thereby effectively avoiding the current consumption of high power in the control device and the electromagnetic disc at the same time.

Description

The control device of pulse ordering type permanent electric magnetic disk

Technical field

The present invention is relevant with control device, is meant especially a kind ofly to fill the circuit control device that takes off magnetic state in order to control permanent type electromagnetic disc.

Background technology

General magnechuck is mainly in order to produce magnetic force absorption Magnetic Induction assembly, therefore be provided as any workpiece that a firm workbench is constituted with the fixed magnetic inductive component, as be applied to surface grinding machine in the machining, or the Physical Experiment platform in the laboratory equipment etc., the applied magnetic force control switch of this type of magnechuck is many can the electronic circuit control mode, be effective reach to fill taken off the magnetic effect, as the inventor in No. the 141363rd, TaiWan, China patent announcement disclosed " transformation and frequency conversion fill automatically demagnetization device ", for being reached, magnechuck takes off the magnetic effect rapidly fully, and the inventor is in addition in No. the 167629th, TaiWan, China patent announcement disclosed " demagnetization device magnetizes ", for having the effect of automatic detection and compensation magnetic force; Yet because the operating power of above-mentioned magnechuck is mainly by the induction coil in the circuit arrangement driving magnechuck, make it corresponding and produce specific and enough induced magnetisms to be distributed on the workbench, could effectively workpiece to be adsorbed be stable in workbench, so for the employed magnechuck of large-area workbench, the output loading of circuit arrangement corresponding to the induction coil in the magnechuck, it often is high-power electric current and voltage running, especially in the time need utilizing a plurality of workbench simultaneously in single machine works or the laboratory, all indivedual corresponding circuit arrangements all start running down, are quite high power load in fact for machine works or breadboard whole power-supply system.

Even if just like No. the 412046th, TaiWan, China patent announcement disclosed " tool safeguard protection fill demagnetization device "; provide to reduce the resistance setting of the required correspondence of solenoid; thereby reduce the demagnetization device that fills of power consumption; yet this kind improvement of circuit structure is with respect to the electric current and voltage running of whole magnechuck inner inductive coil; actually very it is little in its power dissipation that can reduce, moreover also can't avoid the shortcoming of above-mentioned high power load when a plurality of workbenches are enabled simultaneously.

Summary of the invention

Therefore, main purpose of the present invention is the control device that is to provide a kind of pulse ordering type permanent electric magnetic disk, can make in specific time sequence that each magnetic force adsorption zone alternately produces the pulsed electromagnetic induction corresponding to different sequential on the electromagnetic disc, effectively reduce the power load of electromagnetic disc and control device.

For reaching above-mentioned purpose, the control device of a kind of pulse ordering type permanent electric magnetic disk provided by the present invention, has a switch terminal group, one adjusts end group and most output groups, this switch terminal group electrically connects circuits for triggering, this adjustment end group electrically connects a timing circuit, respectively this output group electrically connects the power end group of each adsorption zone on a power output circuit and the electromagnetic disc, controlling this switch terminal group can make the internal trigger circuit with magnetizing of switching of correspondence or take off the magnetic switch conducting in magnetizing or taking off magnetic state, so that each adsorption zone of this electromagnetic disc is alternately magnetized or takes off magnetic response in different sequential, and by controlling this adjustment end group to adjust first or second time of delay that this timing circuit carries out exoelectrical reaction, make this electromagnetic disc and to be processed 's magneticaction after first or second time of delay, promptly keep stable, and stop supplies is magnetized or is taken off magnetoelectricity and flow to electromagnetic disc, this electromagnetic disc of may command magnetizes or takes off the magnetic time in the best, because each adsorption zone of this electromagnetic disc is in turn obtaining to magnetize or take off magnetoelectricity stream in different time, thereby can avoid in the same time powerful current drain in this control device and electromagnetic disc.

Description of drawings

Fig. 1 is the device schematic diagram of first preferred embodiment provided by the present invention;

Fig. 2 is the circuit function schematic diagram of above-mentioned first control device that preferred embodiment provides;

Fig. 3 is the circuit box schematic diagram of above-mentioned first control device that preferred embodiment provides;

Fig. 4 is the application circuit structural representation of above-mentioned first circuits for triggering that preferred embodiment provides;

Fig. 5 is the application circuit structural representation of above-mentioned first timing circuit that preferred embodiment provides;

Fig. 6 is the application circuit structural representation of above-mentioned first counting circuit that preferred embodiment provides;

Fig. 7 is the electrical block diagram of above-mentioned first power output circuit that preferred embodiment provides;

Fig. 8 is the partial structurtes schematic perspective view of above-mentioned first electromagnetic disc that preferred embodiment provides;

Fig. 9 is the sequential output Guan Shitu that above-mentioned first preferred embodiment is provided, and expression pulse signal output and the induction coil of counter obtain the to magnetize corresponding pass of sequential of electric current of magnetizing is;

Figure 10 is the local circuit structural representation of the present invention's second control device that preferred embodiment provides.

The primary clustering symbol description

1

fills demagnetization device

2,4 control device

3 electromagnetic disc

201 mains switches, 202 switch terminal groups

203 adjust end organizes 204 output groups

10 power circuits, 11 alternating current operation end groups

12 dc operation end groups, 13 change-over circuits

20 circuits for triggering, 21 pre exciting switches

22 take off magnetic switch 23 logical circuits

24,25 flip-flops, 241,251 synchronous input end groups

242,252 sequential end groups 243,253 are set the end group

244,254 true value output groups, 245,255 complementary output end groups

26 relays, 261 transistors

262 photoelectricity trigger relays, 27 clamped circuits

30 timing circuits 31 timer that magnetizes

32 take off magnetic timer 311,321 trigger end groups

312,322 pressure limiting end groups 313,323 compare the output group

314,324 discharge switch end groups, 33,34 delay circuits

331,341 variable resistors, 40 counting circuits

41,42 logical circuits, 43 synchronous circuits

431 NOR gate 44 counter that magnetizes

45 take off magnetic counter 441,451 replacement end groups

442,452 sequential end groups, 443,453 pulse output end groups

46,47 feedback circuits, 50 power output circuits

51,52 trigger assembly 511,521 induction end groups

512,522 water conservancy diversion end groups, 53 bidirectional guide circuit

531 two-way thyristor 532 lock ends

54 ac input end groups, 60 adsorption zones

61 power end groups, 62 permanent magnetism assemblies

63 induction coils

70 warning circuits, 71 rectifiers

72 delayers, 73 relays

Embodiment

Below, cooperate some graphic each preferred embodiments of enumerating now, in order to composition member of the present invention and effect are described further, wherein used each description of drawings is as follows:

See also as shown in Figure 1 to Figure 3 to what the present invention's first preferred embodiment was provided and one fill demagnetization device 1, have a control device 2 and an electromagnetic disc 3, this control device 2 is to have a mains switch 201, one switch terminal group 202, one adjusts end group 203 and most output groups 204, and be provided with a power circuit 10, one circuits for triggering 20, one timing circuit 30, one counting circuit 40 and a power output circuit 50, this electromagnetic disc 3 is to distinguish most adsorption zones 60 are arranged, correspondence is provided with a power end group 61 respectively, the mains switch 201 of this control device 2 electrically connects this power circuit 10, switch terminal group 202 electrically connects these circuits for triggering 20, adjust end group 203 and electrically connect this timing circuit 30, each output group 204 electrically connects each power end group 61 of this power output circuit 50 and this electromagnetic disc 3, wherein:

This power circuit 10 includes an interchange, dc

operation end group

11,12 and a change-over circuit 13, after these mains switch 201 switchings are imported this power circuit 10 for AC power AC, this alternating current operation end group 11 can provide the required power supply of alternating current circuit operation of this control device 2, these change-over circuit 13 convertible DC power supply export this dc operation end group 12 to, so that the required power supply of DC circuit operation of this control device 2 to be provided.

These circuits for triggering 20 include a pre exciting switch 21, one takes off magnetic switch 22, one logical circuit 23, two flip-flops 24,25, one relay 26 and a clamped circuit 27, this two switch 21,22 electrically connect this switch terminal group 202, corresponding respectively this switch 21 that switches, 22 open, close state, make the voltage output that the accurate position of high logic is arranged from this logical circuit 23 under the conducting state of closure, this flip-flop 24 respectively, 25 have a synchronous input group 241,251, one sequential end group 242,252, one sets end group 243,253 and one true value output group 244,254, this two synchronous input ends group 241,251 have the logical interlock effect, when arbitrary this flip-flop 24 is triggered in the accurate position of high logic voltage of these logical circuit 23 outputs, 25 synchronous input end group 241,251 o'clock, another this flip-flop 24 of then unlikely triggering, 25 logic running, this flip-flop 24, in the time of 25 triggerings, pairing this sequential end group 242,252 can produce frequency signal, pairing this true value output group 243, one triggering signal of the accurate position of the high logic of 253 outputs, with true value output group 243, the accurate position of the logic of 253 complementary outputs then can be in order to start this relay 26, the AC power AC of this power circuit 10 is inputed to this power output circuit 50 through these alternating current operation end group 11 conductings, therefore if this two flip-flop 24,25 true value output group 243,253 all are maintained at the logical signal of low level, this relay 26 of then unlikely conducting, certainly also there is not AC power AC to be supplied to this power output circuit 50, this clamped circuit 27 electrically connects this and sets end group 243,253, can fix this flip-flop 24 in order to strangulation, 25 true value output groups 244, the accurate position of 254 logic, cooperate Fig. 4 reference, be present embodiment and use the actual circuit structure of these circuits for triggering 20, this flip-flop 24 respectively, 25 is the JK flip-flop, this true value output group 244 with output logic complementation, 254 and one complementary output end group 245,255, this relay 26 has a transistor 261 and a photoelectricity trigger relay 262, when this JK flip-flop 24 respectively, in the time of 25 output triggering signals, this complementary output end group 245, but 255 output transistor 261 of this relay 26 of conducting then after reverse logic running is to start this photoelectricity trigger relay 262.

This timing circuit 30 includes the timer 31 that magnetizes, one takes off magnetic timer 32 and two delay circuits 33,34, this timer 31 respectively, 32 have a trigger end group 311,321, one pressure limiting end group 312,322 and one compares output group 313,323, this delay circuit 33 respectively, 34 electrically connect this adjusts end group 203 and this timer 31,32 trigger end group 311,321 with pressure limiting end group 312,322, this trigger end group 311 respectively, 321 corresponding respectively these flip-flops 24 that electrically connect, 25 true value output group 243,253, respectively should compare output group 313,323 electrically connect this counting circuit 40 and this clamped circuit 27, when arbitrary this timer 31,32 trigger end group 311, after the triggering signal of these circuits for triggering 20 outputs of 321 receptions, promptly change this timer 31,32 see through this delay circuit 33,34 charging and discharging state, and then make this comparison output group 313,323 outputs have a timing signal of the accurate position of certain logic, because this pressure limiting end group 312,322 current potential can be with this delay circuit 33,34 discharge and recharge the reaction and change, therefore by adjusting this adjustment end group 203 to control this and magnetize or to take off magnetic timer 31,32 discharge and recharge the time, can be corresponding to keeping this comparison output group 313 under the discharge condition in first or second time of delay, this timing signal of the accurate position of 323 output fixed logics, this flip-flop 24 is fixed in this clamped circuit 27 corresponding strangulation in the time that receives this timing signal simultaneously, 25 true value output groups 243, the accurate position of 253 logic, more can stablize the circuit running of this timing circuit 30, cooperate Fig. 5 reference, be present embodiment and use the actual circuit structure of this timing circuit 30, this timer 31 respectively, 32 is the monostable timing controller, have and this pressure limiting end group 312, one discharge switch end group 314 of 322 electrical short circuits, 324, be this timer 31,32 RC discharge current path, this delay circuit 33 respectively, 34 have a variable resistor 331,341, therefore adjust this variable resistor 331,341 to change this timer 31,32 discharge and recharge the time can corresponding first or second time of delay of controlling this timing signal of output.

This counting circuit 40 includes two logical circuits 41,42, one synchronous circuit 43, one counter 44 that magnetizes, one takes off magnetic counter 45 and two feedback circuits 46,47, this counter 44 respectively, 45 have a replacement end group 441,451, one sequential end group 442,452 and most pulse output end groups 443,453, this logical circuit 41 respectively, 42 electrically connect respectively this timer 31,32 comparison output group 313,323 reach respectively this counter 44,45 replacement end group 441,451, this synchronous circuit 43 electrically connects this change-over circuit 13 and this two counter 44,45 sequential end group 442,452, import this sequential end group 442 in order to the digit period ripple of exporting and AC power AC is synchronous, 452, when this magnetizes or takes off magnetic timer 31,32 timing signal is imported this logical circuit 41, after 42, promptly correspondingly trigger this and magnetize or take off magnetic counter 44,45 replacement end group 441,451, in first or second time of delay, each sequential current potential of this periodic wave is converted to can be respectively via this pulse output end group 443 respectively, 453 in different sequential the magnetizing or take off the magnetic field impulse signal of output alternately, counter 44 with decimal system function is provided with present embodiment, 45, promptly to ten pulse output end groups 443 should be arranged, 453, right in cooperating output group 204 quantity of this control device 2, then with this pulse output end group 443 of inferior one-level of respective amount, 453 by this feedback circuit 46,47 with this logical circuit 41,42 electrical short circuits, make time one-level pulse output end group 443, feedback to this replacement end group 441 the accurate position of 453 sequential logic, 451, this sequential end group 442, each pulse output end group 443 that each sequential current potential of 452 is just rotated and is output in effective running with pulse signal again again, 453, so control this counter 44,45 pulse signals of being exported are only in effective pulse output end group 443,453 alternately export this power output circuit 50 to fixing frequency, cooperate Fig. 6 reference, be present embodiment and use the actual circuit structure of this counting circuit 40, this two logical circuit 41, the 42 promptly corresponding timing signals that this timing circuit 30 is exported are converted to the accurate position of low logic input institute to should counter 44,45 replacement end group 441,451, this synchronous circuit 43 electrically connects this power circuit 10, AC power AC is treated to the digit period ripple, and be divided into the two cycles ripple of logical complement by a NOR gate 431, be provided with respectively this counter 44 of input respectively, 45 sequential end group 442,452.

This power output circuit 50 includes most and triggers assembly 51,52, a bidirectional guide circuit 53 and an ac input end group 54, respectively should trigger assembly 51,52 have an induction end group 511,521 and one water conservancy diversion end group 512,522, when this induction end group 511,521 inductions are magnetized or when taking off the magnetic field impulse signal, institute is to should output 512,522 can corresponding conducting, respectively these bidirectional guide circuit 53 induction differences trigger assemblies 51,52 startup and produce the corresponding current circuit that flows to, relay 26 triggering and conducting that this ac input end group 54 needs to see through these circuits for triggering 20 just electrically conduct to obtain AC power AC with the alternating current operation end group 11 of this power circuit 10, when this magnetizes or takes off magnetic counter 44,45 output pulse signals should trigger assembly 51 to pairing, after 52, get final product pairing this bidirectional guide circuit 53 of conducting, and in different sequential alternately output magnetize or take off magnetoelectricity and flow to this output group 204, cooperate Fig. 7 reference, be present embodiment and use the actual circuit structure of this power output circuit 50, respectively this bidirectional guide circuit 53 is made up of a two-way thyristor 531, when 40 outputs of this counting circuit are magnetized pulse signal with conducting this triggering assembly 51 respectively, therefore the lock end 532 of this two-way thyristor 531 promptly obtains the conducting current potential, make AC power this two-way thyristor 531 of flowing through, and magnetize electric current to this output group 204 with the AC signal output of positive half cycles, when 40 outputs of this counting circuit are taken off the magnetic field impulse signal with conducting this triggering assembly 52 respectively, can make the lock end 532 of this two-way thyristor 531 obtain the conducting current potentials equally, and the AC power of this two-way thyristor 531 of flowing through is taken off magnetoelectricity with the AC signal output of negative half period ripple and is flow to this output group 204.

See also as shown in Figure 8, these electromagnetic disc 3 each adsorption zones 60 of surface can be placed with to be processed for any magnetic induction assembly, respectively this adsorption zone 60 is made up of several permanent magnetism assemblies 62 and corresponding several induction coils 63 that twine, respectively this permanent magnetism assembly 62 is as iron, cobalt, it is made that nickel etc. have ferromagnetic material, respectively the induction coil 63 of this adsorption zone 60 is for being parallel to this power end group 61, obtain by magnetizing of being exported of the output group 204 of these control device 2 correspondences by this power end group 61 respectively again or take off magnetoelectricity stream, can make magnet assembly 62 on pairing this adsorption zone 60, produce magnetic line of force distribution or elimination magnetic line of force intensity, please cooperate as shown in Figure 9, by the counter 44 that magnetizes of this control device 2 the output pulse signal correspondence that magnetizes be formed at the respectively electric current that magnetizes of this induction coil 63.

Comprehensive above-mentioned discussion as can be known, the user only need control the switch terminal group 202 of this control device 2 as shown in Figure 1, then can make inner these circuits for triggering 20 with magnetizing of switching of correspondence or take off magnetic switch 21,22 conductings, this electromagnetic disc 3 is magnetized or takes off magnetic response, and by controlling this adjustment end group 203 to adjust first or second time of delay of this timing circuit 30, this electromagnetic disc 3 and to be processed magneticaction are kept promptly magnetize or take off magnetoelectricity after stable and flow to electromagnetic disc 3 by the circuit running of this control device 2 and stop supplies, this electromagnetic disc 3 of may command magnetizes or takes off the magnetic time in the best, because this electromagnetic disc 3 each adsorption zone 60 are for obtaining to magnetize or take off magnetoelectricity stream in different time in turn, thereby can avoid in the same time powerful current drains in this control device 2 and electromagnetic disc 3; Moreover, during to suitable with these electromagnetic disc 3 areas to be processed of absorption, because these adsorption zones 60 take off magnetic or the reaction of magnetizing for hocketing mutually with several cycles, can make each part of to be processed progressively and on average be subjected to the magnetic force suction-operated, can effectively reach the steadiness that contacts absorption fully with this electromagnetic disc 3.

Certainly the demagnetization device that fills provided by the present invention does not limit electromagnetic disc 3 sizes as the correspondence driving of above-mentioned control device institute, if provided the counter 44 that has decimal system function in this counting circuit 40 with the foregoing description, 45, as long as change this

feedback circuit

46,47 with selected pulse output group 443,453 with

logical circuit

41,42 short circuit is feedback and is removed, this pulse output end group 443 respectively, 453 all can drive this triggering

assembly

51,52 make this corresponding bidirectional guide circuit 53 send induced current, therefore the demagnetization device that fills provided by the present invention can cooperate the pulse output end group number of each counter and expand the permanent magnetism assembly of electromagnetic disc, makes to be formed with corresponding adsorption zone and to obtain to fill to control device certainly, take off magnetoelectricity stream.

Other sees also as shown in figure 10, a control device 4 that is provided for the present invention's second preferable present embodiment, be with the supplier's of the foregoing description institute difference, this power output circuit 50 more is provided with a warning circuit 70, it is the ac input end group 54 of this power output circuit 50 of series connection, has a rectifier 71, one delayer 72 and a relay 73, when these power output circuit 50 conductings, AC power from these ac input end group 54 inputs then can be converted to the DC driven signal through this rectifier 71, and after driving the optical coupling trigger this delayer 72 of conducting, this delayer 72 is each timer 31 with above-mentioned this

timing circuit

30,32 have the effect that is equal to, this relay 73 of sustainable conducting after its exoelectrical reaction of triggering and conducting, as long as therefore this relay 73 is electrically connected the device that has warning function as buzzer or warning lamp etc., can be when these power output circuit 50 conductings have magnetizing or take off the output of magnetoelectricity stream, continue this control device 4 of caution user and magnetize or take off the magnetic process for being carried out at.

The above only is a preferable possible embodiments of the present invention, changes so use the equivalent structure that specification of the present invention and claim do such as, ought to be included in the scope of claim protection of the present invention.

Claims

1. the control device of a pulse ordering type permanent electric magnetic disk is characterized in that, has a switch terminal group and most output groups, starts this switch terminal group and can make those output groups respectively at different sequential electric current output be arranged alternately, includes:

One circuits for triggering electrically connect this switch terminal group, control the conducting state of this switch terminal group, and the corresponding triggering signal that the accurate position of certain logic is arranged that produces;

One timing circuit, has one first and one second trigger end group, electrically connect this circuits for triggering, after this this triggering signal of first or second trigger end group of received, this timing circuit is exported the timing signal that the accurate position of certain logic is arranged in one first or one second time of delay of correspondence, this first and second trigger end group has the accurate position of fixing logic in this first or second time of delay;

One counting circuit, electrically connect this timing circuit, has one first and one second counter, respectively this first and second counter includes most pulse output end groups, the triggering signal of this first counter to should the first trigger end group being received, make these corresponding in first time of delay pulse output end groups alternately export most first pulse signals of single periodic wave in different sequential, the triggering signal of this second counter to should the second trigger end group being received makes these corresponding in second time of delay pulse output end groups alternately export most second pulse signals of single periodic wave in different sequential; And,

One power output circuit, electrically connect the pulse output end group of these output groups and this first and second counter, in order to change these first or second pulse signals that this first or second counter is exported, make this output group respectively in different sequential the electric current output of single periodic wave be arranged alternately, this first pulse signal is corresponding with second pulse signal to be formed at respectively that the current path of this output group is an opposite course.

2. according to the described control device of claim 1, it is characterized in that this switch terminal group electrically connects two switch modules, conducting is the corresponding accurate position of logic that changes wherein this first and second trigger end group of this timing circuit of this switch module wherein.

3. according to the described control device of claim 2, it is characterized in that, these circuits for triggering are provided with two flip-flops, the difference correspondence is this switch module respectively, respectively this flip-flop has a synchronous input group and a true value output group, conducting wherein this switch module to make two these synchronous input end groups be the accurate position of opposite logic, and make the true value output group of this corresponding flip-flop produce the triggering signal of the accurate position of high logic.

4. according to the described control device of claim 3, it is characterized in that respectively this flip-flop has more a sequential end group, conducting wherein this switch module makes the synchronous input end group of this corresponding flip-flop with sequential end group the accurate position of identical logic be arranged.

5. according to the described control device of claim 3, it is characterized in that, these circuits for triggering are provided with a relay, respectively this flip-flop has more a complementary output end group, with this true value output group is the accurate position of opposite logic, and conducting is this switch module this relay of the accurate position conducting of logic that the complementary output end group of this corresponding flip-flop is exported wherein.

6. according to the described control device of claim 5, it is characterized in that this relay electrically connects an AC power and this power output circuit, this relay of conducting electrically conducts this power output circuit and this AC power.

7. according to the described control device of claim 1, it is characterized in that, this timing circuit is provided with one first and one second timer, correspondence has this first and second trigger end group respectively, the triggering signal that this first or second trigger end group is received in order to trigger export above-mentioned timing signal to exoelectrical reaction that should timer and from this timer, this is first or correspond to discharge time of second timer this first or 1 second time of delay respectively years old.

8. according to the described control device of claim 7, it is characterized in that respectively this first and one second timer electrically connects a delay circuit, change this first or second time of delay of the corresponding change of equivalent resistance of this delay circuit.

9. according to the described control device of claim 8, it is characterized in that respectively this delay circuit has a variable resistor, adjust this variable-resistance resistance value correspondence and change this first or second time of delay.

10. according to the described control device of claim 7, it is characterized in that, these circuits for triggering are provided with a clamped circuit, electrically connect this first and one second timer, this clamped circuit is changed the timing signal that this timing circuit is exported, this first or one second timer was carried out in exoelectrical reaction pairing time of delay, these circuits for triggering for the accurate position of the fixing logic of output to this first or second trigger end group.

11. according to the described control device of claim 1, it is characterized in that, respectively this first and second counter has a replacement end group, and the timing signal that this counting circuit is exported this timing circuit is converted to the replacement end group of this first or second counter of the accurate position input of low logic.

12. according to claim 1 or 11 described control device, it is characterized in that, this counting circuit is provided with a synchronous circuit, respectively this first and second counter has for the moment that preface end group electrically connects this synchronous circuit, this synchronous circuit has the digit period ripple of specific time sequence in order to generation, and the respectively sequential end group of this counter is not imported in the two cycles wavelength-division that is divided into logical complement.

13., it is characterized in that this synchronous circuit has a NOR gate according to the described control device of claim 12, the sequential end group of this first and second counter electrically connects the logic input and the output of this NOR gate respectively.

14. according to the described control device of claim 11, it is characterized in that, this counting circuit is provided with two feedback circuits, electrically connect respectively this first and second counter respectively, in order to the accurate position of logic that will arbitrary this pulse output end group output first or second pulse signal feedback extremely pairing should replacement end group.

15., it is characterized in that respectively the output node number of the pulse output end group of this first and second counter is more than or equal to the output node number of these output groups according to the described control device of claim 14.

16., it is characterized in that this power output circuit electrically connects an AC power according to the described control device of claim 1, import this power output circuit when this first or second pulse signal, this AC power output AC signal is to this power output circuit.

17., it is characterized in that these first or second pulse signal correspondences make these output groups have the AC signal in the single cycle of half cycles to pass through respectively at different sequential according to the described control device of claim 16.

18., it is characterized in that this power output circuit is provided with most two-way thyristors according to the described control device of claim 17, respectively this output group electrically connects this two-way thyristor.

19., it is characterized in that according to the described control device of claim 16, more be provided with a warning circuit, have a rectifier and a relay, this rectifier electrically connects this AC power, in order to be direct current signal with the AC signal rectification, to trigger this relay conducting.

20. according to the described control device of claim 19, it is characterized in that this warning circuit has a delayer, electrically connect this relay, this rectifier is the exoelectrical reaction that direct current signal then triggers this delayer with the AC signal rectification, and the discharge process of this delayer continues this relay of conducting.

21. one kind is filled demagnetization device, has an electromagnetic disc and a control device, it is characterized in that, wherein:

This electromagnetic disc is divided into most adsorption zones, one power end group, most induction coils and most permanent magnetism assemblies are set respectively, respectively the induction coil of this adsorption zone and power end group electrically connect, respectively at least one this permanent magnetism assembly of the corresponding winding of this induction coil;

This control device is provided with a switch terminal group and most output groups, these output groups electrically connect respectively this power end group respectively, start this switch terminal group and take off magnetic state in the state or that magnetizes, can make these output groups that the electric current output of single periodic wave is alternately arranged respectively at different sequential, this magnetize state with take off that magnetic state is corresponding to be formed at respectively that the current path of this output group is an opposite course, the magnetic line of force that this state of magnetizing makes each adsorption zone of this electromagnetic disc produce particular magnetic field strength distributes, and this takes off magnetic state makes the magnetic field intensity of this each adsorption zone of electromagnetic disc level off to zero.

22., it is characterized in that this control device includes according to the described demagnetization device that fills of claim 21:

One circuits for triggering electrically connect this switch terminal group, control this switch terminal group conducting in this state or take off magnetic state of magnetizing, and the corresponding triggering signal that the accurate position of certain logic is arranged that produces;

One counting circuit, electrically connect this timing circuit, having one magnetizes and one takes off magnetic counter, respectively this magnetizes and takes off magnetic counter and includes most pulse output end groups, this counter triggering signal that magnetizes to should the first trigger end group being received, make these corresponding in first time of delay pulse output end groups alternately export most the pulse signals that magnetize of single periodic wave in different sequential, this takes off the triggering signal of magnetic counter to should the second trigger end group being received, and makes these corresponding in second time of delay pulse output end groups alternately export most of single periodic wave in different sequential and takes off the magnetic field impulse signal; And,

One power output circuit, electrically connect these output groups and this pulse output end group that magnetizes and take off magnetic counter, magnetize or take off the magnetic field impulse signal in order to change these, the electric current output that it is the positive half period ripple that this pulse signal correspondence that magnetizes is formed at this output group respectively, this takes off the electric current output that to be formed at this output group respectively be the negative half-cycle ripple of magnetic field impulse signal correspondence.